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W. H. DAYTON. l l MACHINE POR SWAGING RODS, LG- I No. 492,575. PatentdFeb .r28, 1893.

(No Model.)

s sheets-sheet 2( W. H. DAYTO1\I MAQHINB PoR SWAGING RODS, sw.

Patented Peb 28, 11893.

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- w. H. DAYTON..

-MAGHINE FOR SWAGING RODS, &c.

- No.` 492,575. Patented Feb. 28', 1893.

UNITED STATES WILLIAM Il.

PATENT OFFICE.

DAYTON, OF TORRINGTON, CONNECTICUT, ASSIGNOR TO THE EXCELSIOR NEEDLECOMPANY, OF SAME PLACE.

MACHINE FOR SWAGING RODS, SLC.

SPECIFICATION forming part of Letters Patent No. 492,575, dated February28, 1893.

Application filed July 18J 1892. Serial No. L140,304 (No model.)

To all whom t may concern:

Be it known that I, WILLIAM H. DAYTON, a citizen of the United States,residing at Torrington, in the county of Litchfield and State ofConnecticut, have invented an Improvement in Machinery for Swaging Rodsand other Round Articles, of which the following is a specification.

In Letters Patent No. 474,548, granted to ro me May 10, 1892, a machineis represented in which there are dies in a cross mortise at the end ofa revolving shaft, and wedges by means of which the dies can be openedor closed more or less during the swaging operation,

t 5 thereby adapting the dies to the swaging of round articles that arelarger at one place than at another.

The present invention is made with reference to the feeding of theblanks to the dies,

2o and it is specially intended for the feeding of wires for makingspokes for bicycle and other wheels, in which the end portions of thespokes are of larger diameter, so as to receive the screw threads bywhich such spokes are connected to the hub and felly respectively, andmy present invention relates to the combinations of devices hereinafterset forth and claimed.

In the drawings Figure l is a general plan view. Fig. 2 is a rearelevation with the die shaft in section at the line :r w. Fig. 3 is afront elevation with the pinchers removed. Fig. 4 is a longitudinalsection of the pinchers. Fig. 5 is a plan of the same detached. Fig..6is a side View. Fig. 7 isa longitudinal section of the die shaft and thehead of the same showing also the pinchas of the feeding apparatus. Fig.S is a detached view of the segment and rock shaft in the blanksupplying device, and Fig. 9 is a detached view in larger size of thehopper and blank supplying sector.

The swaging dies A are in a slot across the end of the revolving shaftB, and there is a circular group of rollers D around the shaft and diesand within the shell C, and this shell C is part of or connected with astandard or frame C that is adapted to supporting the parts of themachine, and there is a framework I extending out from the shell C orstandard C and in which are guide ways for the sliding bed J which isadapted to receive the pinchers H that`are in line with the axis of theswinging dies and receive the blank that is to be operated upon.

The counter-shaft T runs longitudinallyof the machine and is supportedat its ends in bearings or boxes 7 and 8 and it is provided with adriving pulley U at one end, the belt of which preferably leads to. acone of pul- 6o leys, so that the speed of this counter-shaft T can bevaried according to the work that has to be performed, it beingunderstood that this counter-shaft T is revolved more slowly inproportion to the revolving shaft B when the reduction made bytheswaging dies is heavy, and when the reduction is light the counter-shaftT can be revolved faster in proportion to,the revolution of the shaft B;and I remark that it is advantageous to provide a 7o fly wheel B on theshaft. B and a fast pulley B2 and loose pulley B3, so as to adapt theapparatus to a belt for driving the shaft B, and it is advantageous tosupport the shaft Bin a tubular extension C2 from the standard C or 75shell C. y

Upon the counter-shaft T there are worm pinions 9 and 10, the pinion 9rotating a Wheel V upon a cross shaft F and the pinion 10 rotating awheel W upon a cross shaft F', and 8c upon these shafts there are camsfor moving the parts of the apparatusas hereinafter described.

Upon the shaft F is a cam E properly shaped to give endwise motion atthe proper time in bringing the dies'nearer together or farther apart. Ihave represented the cam E as acting upon a lever arm 11 upon a rockshaft 12 with an arm 18 forked at the upper end and acting upon a collar15 between the nuts 14 9o upon the tubular revolving shaft B, and inconsequence of placing the rollers D at an inclination, as representedin Fig. 7, these rollers act to close the dies nearer together when theshaft B is moved backwardly and to allow them to open farther as theshaft B is moved forward, and it will be observed that the 'spring 16acts to keep the lever arm 1l toward the cam E and to move the shaft Bbackwardly, and the cam E gives the moveroo upper end to the sliding bedJ, and there is a l connecting rod M to a lever L having a roller 1ncontact with the cam N upon the shaft F, which cam N is so placed andshaped that the bed J, the pinchers and the blank, rod or wire to -beacted uponare moved up toward the dies and the rod is passed endwisethrough the dies with the required speed as such dies are opened andclosed by the action of the rolls D against the outer ends of the diesor die blocks as the shaft B is revolved, and aecording to the shapethat is to be given to the article that is being swaged, so that thecamsE and N will be varied.

the cam E causes the dies A to open and allow the spoke to be Withdrawn.

If the spoke is to have an enlargement in the middle, or if a rod orwire is being swaged to produce a gradual taper, the shape of the cams Eand N will be varied so as to adapt them to the article that is to beswaged.

Any suitable mechanism will be made use of for opening and closing thepinchers H at the proper time, and also for supplying the Wires orblanks to such pinchers, but I prefer and make use of the devices hereindescribed.

The pinchers H are pivoted at 18 within a sliding stock H which mayslide endwise beneath the cross bars or bearings 19, and at the rear endof the stock H there is a screw 2O bearing against a spring 21 supportedby the flanges or bearings 22 upon the bed J, so that this spring 21allows a slight endwise yielding movement to the pinchers, so that theymay act more efficiently in forcing the wire or blank along between theswagin g dies A during the swaging operation, and there is They arerepresented in the drawings as adapted to the swaging ofspokes c, shownin Fig. 6, and the blank is to g be held vby the pinchers H and ispassed in between the swaging dies A and projects behind E them theproper distance and then the dies@I are gradua-lly closed by the endmovement; before described, so that such dies are made to reduce thearticle to the required size, and t the feeding is continued so as tomake thel middle portion of each spoke of uniform lsize or nearly so,and then the pinchers and bed I are drawn back to a stop hereinafter de-5 scribed which arrests the backward movement of the bed and pinchersfor -finishing the surface of the conical or tapering portion of l thespoke between the smaller and larger dij ameter near the first endthereof, after which a spring 23 that acts to open the jaws of thepinchers, and a wedge 24 between the back ends of the pinchers to closesuch pinchers, and to theback end of the wedge 24 a toggle link 25 isconnected, and there is a second toggle link 26 pivoted at its rear endto the adjusting screw 27, hence when the toggle links are brought downinto line with each other, as shown in Fig. 4, the pinchers are closedto hold the blank, and when the toggle links are raised up into theposition shown in Fig. 7 ,the pinchers are open for relieving thefinished blank and for receiving another blank.A

In order to actuate the toggle links 25 and 26, I employ a link 28 to acrank arm 29 upon a shaft 30 having an arm 3l with a pin that slides inthe slotted bar c which has a vertical slide within the guide ways f,and at the lower end is a roller acted upon by the cam g shown by dottedline in Fig. 6, which can be shaped so that it lifts the slotted barefor closing the pinchers and allows the spring h to draw down theslotted bar e for opening the pinchers, and the slotted bar c allows thepin upon the arm 3l to travel along in said slot during the time thatthe swaging operation is being performed, and the blank is held firmlyby the pinchers.

I have represented the stop 7l inthe .formof a lever acted upon in onedirection by a spring lo, and in the other direction by a cam Z,so thatthis stop 'L' comes up in front lof the adjust-ing screw m as thesliding bed J moves back, and this stop c' arrests the further backwardmovement of the bed, regardless of the shape of the cam N, because thespring R is employed to move the parts and draw the slide bed J back,vand the shape of the cam Z i-s such that it allows the spring stop i toarrest the backward movement of the parts with thetapering portion o` ofthe spoke c between the swaging dies A, so that such part is fullyfinished, and then the dies A are opened and the cam Z draws downthe-spring stop z' and the spring R acts upon the parts to complete thebackward movement suddenly, at which moment the cam g, acting throughthe intermediate parts,opens t-he pinchers and the finished spoke isallowed to drop, and then another spokeis laid in between the jaws ofthe pinchers, and such pinchers are then-closed and the operationsbefore described are repeated.

The spokes might be placed in the pinchers H by hand, but I prefer tosupply them automatically by any suitable device; I have however shown arock shaft P upon which are sectors O O that are sufciently longffortheir curved surfaces to remain beneath the magazine n which is formedas a vertical trough or holder for the reception of the blank spokes orvwires one above the other. Where the blank or wire is short, only oneof these sectors need be employed, butI have represented two of suchsectors so as to adapt the machine to blanks or wires for making spokes.This magazine n is suitably supported from the IOO head or shell C, andtheY sectors O O are beneath the lowest wire or blank in the vmagazine,and upon reference to Figs. 3 and 9, it will be seen that the sectors OO are cut away at such places that when the sectors are turned up intothe position represented in these two figures, the bottom spoke in therange of spokes within the magazine will drop into the notch, and whenthe sectors are moved, the blank or Wire will be carried out from themagazine, but all the other wires in the maga-V zine will be supportedby the curved surfaces of the sectors.

Upon the rock shaft P there is abevel gear fr, and upon the lever arm sthere are. gear teeth engaging the bevel gear r, and this lever arm s isconnected with the lever arm s with a roller tin contact with the cam uupon the second cross shaft F', and there is a spring o to press theroller t toward the cam u, and this cam u is shaped in such a mannerthat in acting upon the roller t the rock shaftP is rotated at theproper time to bring down a blank to the pinchersHand to return afterthe pinchers have grasped the blank ready for taking down a second wireor blank at the proper time, and there is a finger c] pivoted at 32 toone arm of the sector` O, and this finger is drawn toward the blank by aspring 33, but the end of the finger comes against one side of themagazine n so that the movement of the finger is arrested to allow thenecessary space for the lowest wire or blank in the magazine to dropinto the notches of the sectors O O', and as the sectors move and carryaway the blank or wire, the finger q grasps such blank to hold it inplace until the pinchers rmly engage the same, after which as thesectors return to their normal position as shown in Fig. 9, the fingerqdraws away from beneath the wire or blank in the pinchers in consequenceof the pivot 32 of the nger being above the rock shaft P, and Vhence theend of the finger described an arc of a circle until its divergencecauses the end of the nger to separate from the wire or blank as held bythe pinchers, and the spring S33-returns the finger to the normalposition shown in Fig. 9.

It is advantageous to provide a clutch at p for connecting the drivingpulley U to the counter-shaft T and a lever p for shifting the pulley toconnect or disconnect the clutches and thereby stop or start the feedingmechanism of the machine; and it will be understood that when thefeeding mechanism is stopped or thrown out of action, no harm resultsfrom the continuance of rotation of the swaging dies and their shaft.

I claim as my invention- 1. The combination with the swaging dies andthe pinchers for grasping the wire blank to be swaged, of a revolvingshaft and automatic mechanism therewith connected for moving thepinchers and the wire endwise between the dies, and automatic mechanismreceiving motion from the revolving shaft for varyin g the point towhich the dies are closedupon the article, so as to automaticallyregulate the swaging action and the diameter of the article in differentparts of its length, substantially as specifie 2. The combination withrevolving swaging dies, of a magazine for holding the blanks or wires'tobe swaged, a rock shaftand sector and a linger for receiving andtransferring the blank from the magazine, and pinchers for receiving theblank from the sector, mechanism substantially as specified for givingmotion to the pinchers and to the sector, a back move the bed andpinchers, substantially as set forth.

4. The combination with the revolving shaft and swaging dies and rollersand a shell containing said rollers, of pinchers and the mechanism foractuating the same, a bed carrying the pinchers, a lever, connectingrod, spring vand cam for moving the bed and the pinchers endwise, a backstop and adjusting screw for determining the position of the bed at theback movement, and a cam for automatically' Y withdrawing the backstopat the proper time for allowing the spring to movethe bed andpinchers, substantially as set forth.

5. The Vcombination in a swagingv machine of dies and means forrevolvingthe same and kfor pressing the swaging dies toward each other,means for regulatingthe point to which the swaging dies are closed, amagazine for holding the wires or blanks to be swaged, pinchers andmechanism for opening and closing the same, and a sector, rock shaft,and

finger for transferring the wire or blank from the magazine to thepinchers, substantially as set forth.

IIO

6. The combination with the revolving shaft ing to the revolving shaftan endwise movei ment to regulate the swaging action of vthe dies, amagazine for holding the blanks to bey acted upon, pinchers for holdingthe blank While being swaged, and mechanisnnforrmoving such pinchers andthe blank endwise between the dies, and a rock shaft and sector fortransferring the Wires or blanks one at a time from the magazine to thepinchers, substantially as set forth.

7. The combination with the swaging dies y and revolving shaft carryingthe same, of a connections for giving an end motion to the revolvingshaft and swaging dies, a sliding bed, pinchers carried by the same, atoggle and Wedge for closing the pinchers, a lever and connections tothe sliding bed for moving the lo same endwise by the action of one ofthe cams, a slotted bar raised and lowered by one of the cams for actingupon the toggle links and pinchers, and a back stop for regulating themovement of the sliding bed, one

of the camsoontrolling the said back stop,`

substantially as set forth.

8. The combination With the swaging dies and revolving shaft carryingthe same, of ar counter-shaft, driving pulley and clutcli,y

zo Worm pinions upon the counter-shaft, gearsv and cross shafts drivenby such Worm pin-vv ions, cams on thenaforesaid shafts, levers andconnections for giving an end motion to the revolving shaft and swagingAdies, a sliding bed, pinchers carried by the same, a toggle and wedgefor closing the pinchers, a lever and connections to the sliding bed formoving the same endwise by the action of one of the cams, a slotted barraised and lowered by one of the cams for acting upon the toggle linksand pinchers, a back stop for regulating the movement of the slidingbed, oneof the cams controlling the said back stop, a rock shaft andsector and a magazine for holding the wires or blanks and gearing, and alever acted upon by one of the said cams for carrying the wire or blankfrom the magazine to the holding pinchers, substantially as set forth.

Signed by me this 13th day of July, 1892.

VILLIAM l-I. DAYTON.

Witnesses:

G'Eo. T. Pl-NCKNEY, WILLIAM G. MoTT.

